Tau, 24, joined the English top-flight outfit in the off-season in a reported £2.88 million (R55m) transfer from Absa Premiership champions Mamelodi Sundowns.
Rated as one of the finest talents the country has produced in recent memory, his move sparked major optimism as the rise of an attacking talisman of the nation.
However, after failing to gain a work-permit due to the low ranking of the national team and his lack of appearances over the previous 24 months, he was forced to move on loan to the Proximus League with Royale Union Saint Gilloise.
And Wright - speaking at an event in London hosting the MultiChoice Diski Challenge champions Bloemfontein Celtic - admits does no justice to the ability the Masandawana academy graduate.
"Look at Percy, I've seen him. You can't tell me Percy cannot play at Brighton," Wright said, as per Sport24. "He's good, brilliant... a good footballer, man! You have to judge people on their abilities.
"It's going to be difficult for South African players to play in England because of the work permit situation and getting SA to a level where a player can come straight to England and get the work permit.
Wight added: "That's why you need football people making these decisions. It's not decisions for government people, civil servant people... football people have to take control of this situation.
"The problem is that (in the UK) they don't take you on talent. They take you on logistics and red-tape ... you have to play a certain amount of games internationally."
Tau has made 19 goal contributions (10 goals, nine assists) in 29 games across all competitions within his debut season in Europe.