I like the play. I also wouldn't worry about the others criticising you for making it less likely that the player will get knocked out. That's simply untrue. Actually narrowing the field is exactly what you want to do. The more people who get involved in the hand can not only give them a better chance to win because of the multiway pot aspect but it also gives them more chances to gain more chips. This is very common at the low level. One player goes all-in, one player raises, and then you get two or three cold callers behind the raiser, so that gives the short stack all-in player a chance to potentially quadruple up. A good player what's to eliminate that kind of play preflop if he/she can help it. That's what isolation is all about.