Singapore Sportshub Field - patchy grass and being a beach about it

Well, the "beach" in the title refers to the sand that the grass did not cover, obviously. The sports field at Singapore Sportshub was installed by Desso GrassMaster (link: http://www.desso.se/news-events/nyhetsoversikt/2014/5/singapore-sports-hub-unveils-state-of-the-art-multi-functional-pitch-at-the-national-stadium/), a Belgium company, who revealed it on May 2014. The field consists of two grass species - ryegrass and bluegrass - that were previously unheard of being grown in equatorial countries. The following will be a brief examination of the grasses and management practices.

Ryegrass - presumably the Perennial ryegrass, with the scientific name of Lolium perenne. It is native to Europe, Asia and northern Africa. Asia... mean it could grow in Singapore right? Perennial ryegrass is a C3 grass, best suited for growing in temperate climates: its optimum growth temperature is 18-20 degree celcius (Mitchell, 1956) (source: http://www.cabi.org/isc/datasheet/31166). Maybe that is why its called a "cool-season grass" (meaning it thrives in areas with cold freezing winters and hot summers). Furthermore, in the distribution map on the CABI website mentioned above (reproduced below), nowhere near the equator, except for Brazil, is this grass growing. Perennial ryegrass does not have rhizomes or stolons, so they do not form a "mat" like the turfgrasses commonly used in Singapore like Zoysia or Cynodon. Perhaps that's why it cannot hold down the sand, leading to players kicking sand into one another's eyes. Also, it is drought sensitive. As I understand, there is no irrigation systems installed in football fields. Edit: According to the photo on the following article, (source: https://sg.sports.yahoo.com/blogs/fit-to-post-sports/-well-said---baihakki-khaizan-s-instagram-post-on-singapore-national-stadium-strikes-a-chord-with-many-025022049.html) there seemed to be an irrigation system on the field, temporary or otherwise.

Bluegrass - presumably the Kentucky bluegrass, with the scientific name of Poa pratensis. Like the Perennial ryegrass, it is cool-season grass, but the Kentucky bluegrass is moderately drought tolerant (source: http://plantscience.psu.edu/research/centers/turf/extension/factsheets/species#section-0). Kentucky bluegrass has stolons and rhizomes.

One of the unique points of the field is that "artificial fibres of 18cm long are inserted into the sand and at 2cm intervals." The grass roots would intertwine with fibres and the designers claim that "this anchors the field and creates a solid, even structure." With some foreign objects stuck in the ground, how could aerating and dethatching be done? According to an interview with the head groundsman, it could be done (source: https://sg.sports.yahoo.com/news/national-stadium-pitch-utilise-state-art-hybrid-grass-081500546.html).

Recently, the Stadium brought in artificial lights to shine on the field in order to encourage growth of the "otherworldly" turf. Is Singapore experiencing winter already? Oh no, it was just that the dome top was closed! By the way, the artificial lighting costs S$1.5 million, which is 80% more than the field (S$833,000).