That's a lot of lip service. SegWit has been available for months, and for a mammoth corporate company like Coinbase, upgrading their wallets to support it should have been relatively simple to do. At the very least, it shouldn't have taken them this long. What their priority seemed to be was instead something like Bitcoin Cash support, which they originally would not do, then said would happen in 2018, and then jumped the gun and invited all that rumour (and evidence) of insider trading...
I agree that the earlier launch of Bitcoin Cash trading was pretty shady
and has destroyed the trust that many people had in Coinbase.
However, I disagree about how easy it is for Coinbase to integrate
Segwit. I´ve read somewhere that they use a custom software to manage
more than 800k Bitcoin wallets. Therefore it might not be trivial to
update to Segwit adoption compared to other exchanges that use a wallet
software that is maintained by external developers.
Nevertheless, a company that is as profitable as Coinbase should really
finish Segwit integration.