The more the merrier and the sooner this stranglehold over some of the most important communication platforms is smashed the better. Their users aren't a bunch of junior school kids who need shielding from big bad scary ideas.
Although I agree, I understand the intention. Mike Hearn wants to use the blocksize issue to take over the keys to bitcoin's github commits, and has cheerfully announced his intentions to remove all that pesky monetary freedom, pseudonymity, decentralisation etc, both recently and in the past.
More transaction volume is needed, and bigger blocks will be needed one way or another. But choosing XT and Hearn sacrifices everything that makes Bitcoin what it is, including (intrinsically) what makes it so valuable.
Still stuck your head up your ass i see..
