Don't think so. If Filler has withdrawn, the statement would have read "Filler has withdrawn" instead of "Filler has been withdrawn".
Like saying Filler has been fired from Reyes Cup instead of he has resigned
Actually, more like he is suspended/ disqualified. cos even though RC is an invitational event, actually only last 2 wildcard spots are invited. The first 3 spots are earned thru ranking points. Whoever earn one of the 3 spots automatically get a bonus i.e. play in RC and guaranteed minimum prizemoney (not sure how much it is in RC, in MC is $20K , RC should be less than MC)
Initial press release said "team integrity". That does not necessarily mean it is decision of players.
Highly unlikely the players didn't want him there.
If Team Europe players replace Filler with weaker player they will reduce their chances of winning Reyes Cup and their winnings $$ and why would they do that? Team Asia players also unlikely to want him out as it will not be good perception for them to play a weaker Europe team