Is it me or was Game of Thrones underwhelming ?

So watched the final episode last night and was seriously underwhelmed the whole last season just felt rushed ! While the rest of the seasons had a slow burn everything came to a head pretty quickly ! It reminds me of Lost another series I invested a lot of time in only to be disappointed at the end. I believe the writers are penning the next Star Wars saga and I get the impression that they had to finish GOT pretty quickly due to contractual obligations and boy did it show !