That's a pretty bold statement, especially when you claim it's a significant number. I take it you have figures to back this up?
If you have a squad of 26, realistically around 14 players will play and also benefit from appearance bonuses.
The other 12 players will be having to do a couple weeks more training with no benefit to themselves what so ever (and at this level, probably out of contract in the summer). So I think it makes sense a good number of players won't be too bothered.