I can't speak for others, but I did not receive any notification of these changes having been made, and I have been in a mad deadline crunch on freelance work for the past couple of months, and have therefore not checked in regularly on the forums either. I had entirely missed this addition to the ToS.
It is entirely possible that whatever notification I was supposed to receive just never made it all the way to me, but the fact remains that it didn't. I can only assume I am not alone in this - and it is probably contributing to this delayed response to the change.
I am glad to see the clause has been removed, as I do not feel it belonged in the ToS to begin with. It is too broad, and I don't feel comfortable giving Tapas blanket consent to Right of Refusal to my work in that manner. First Right of Refusal is, in and of itself, not a horrible idea, but it is normally part of a contract negotiation and is something that a publishers pays the creator for, which is not what this was.
If Tapas wants to help creators, then there are better ways to go about it than this ToS-change. Creating a separate submissions-service, or restricting this type of clause to the Premium-content creators only would be good steps. And I agree that in general, Tapas needs to be better at communicating these things prior to the change being made.
I have not yet decided whether to keep my comics here or take them elsewhere, but this whole thing - the ToS-changes, the response from Tapas, etc., - has certainly made me consider my options.