I feel burned by both just about equally.
If you go back 2 years ago, Ray Allen is getting to the twilight of his career but his work ethic and legacy of shooting 3's make him seem like he's a big part of our team. After the loss in 2010 and his poor performance, I thought he had something to prove for the team.
Doc's legacy has been questionable to many but I always liked what he appeared to represent. I always liked what he had to say. He said "I'm a Celtic". Made me feel like one too. So I was okay with him leading the team. I felt like he had done a good enough job to stay on. Sure, some things could be done better, but the last 5 years he's done a solid job. 1 Title, 2 Finals, 3 EC Finals. I'll take it.
Now, there is reasons guys leave and you're fine with it. But the way these two left leaves a bad taste in my mouth. Ray left to go join the team that eliminated us the 2 prior years. Almost like a prima-donna who got his feelings hurt. Felt like he said "I'll show them" and in reality....he did. Ray's walking away with another Ring. The shot of the Finals and the term 2 time champion added to his legacy.
Doc who claimed "So many coaches talk team and I wanted to prove it" turned out to be a ring chaser. All talk. Snow job. Disloyal. Yeah, it can be said he didn't want to stick around for a rebuild. That he was right to go after rings because he had built himself up to that level. The fact of the matter is, he looked all of us Celtics fans in the eye and told us he was a Celtic and he was fine with a rebuild.
I'm with the OP on this. We got sucker punched in the stomach 2 years in a row. In the end we will probably be a better team to have went through this in the long run and the tarnish will wear down over time. But it doesn't feel like guys who call themselves Celtics or characterize themselves as Celtics should be taken too seriously anymore unless they either retire Celtics or Danny trades them away. In both cases, these two would have been welcomed to stay. And in both cases, they walked away.
I'm hoping Danny rebuilds us quickly. But I almost feel like it'll be awhile before we have another 5 years like those again.