The point you are missing (and loosing) is that local residents don't want the streets blocked every weekend and in some cases unable to park their own cars.
Selfishly you think this is okay.
FFS this is incredibly simple. The travel plan clearly states the parking restrictions are only to be put in place when a crowd of 10K plus is expected. That's it, no mention of CCFC games or regular events being exempt. If its for regular events I assume they are also in place when Wasps netball takes place?
Its nothing to do with how regular events are or difficulty in predicting attendances. If the residents or anyone else thinks the threshold is incorrect then they should look into getting it changed. You can't just let the people who stand to profit from on street parking being restricted make the decision if the rules are enforced or not for any particular event.
Think it through. For crowds less than 10K there's enough spaces at the Ricoh for pretty much everyone who drives up there. But if Wasps didn't put the parking restrictions in place for our games, with full knowledge that the crowd won't be 10K, how would they get away with charging our fans £10 to park?