I don't feel like an extra month to rest or to evaluate the team makes any difference. Either way, I would expect the team to be ready for next season when things start and I expect that Ainge would have made whatever changes he needs to make. I would rather see the team play as many meaningful playoff games as possible.
That said, I don't see it as causing any long term damage to the team if we do have an earlier than expected playoff exit. The Portland game last night was a microcosm of the season in that we have a ton of really good young talent, Tatum, Brown, Pritchard, Nesmith, Langford, RWilliams. The silver lining so to speak of a frustrating loss it has been a frustrating season and will be more so if we exit early.
No, to me, the issue is that we need a skilled big. Even Nurkic was able to exploit our bigs last night. And we didn't really have any answer to Carmelo as their PF. They got 19 pts out of the center position (Nurkic and Kanter), we got 7 (Thompson and Williams). They added in 23 more from Carmelo and Covington who are more swing but played PF for them. Our swings/PF (Parker, Ojeleye, GWill) didn't even play. We would have given up to much skill/scoring to have them on the court.