It does help the coin to have a higher hash rate - less possibility of a 51% attack.
It also helps the coin to have more solo miners - wider distribution, less centralization.
It also helps the coin when solo mining is competitive - easier to onboard new and novice users as miners.
I think the balance has swung a bit too far towards pool mining now - however it won't be as pronounced as before, as miners are required to HODL for 1 year so only miners who believe in the coin and are making an invesment will mine for now.
To redress the balance, I do think we need to integrate optiminer's enhancements into the wallet miner, to make solo-mining competitive again. If we don't do this, I think we'll see most of the hashing power on a single pool soon, and this give us a central point of failure - not good for anyone.
HEAR! HEAR! Couldn't have said any better. It was what I'm trying to say about the effect of pool mining have on solo mining before my words got twisted.