Dude sjt you must have read selectively... after reading the entire transcript, I don't know how you can construe anything he said as making an excuse. If anything, he implied the team was at the tipping point of transitioning into the type of squad he wants (see the "transcending mindset of the entire football team" bit).
He also stated several times that they are way ahead of where they were last year. If he were trying to temper expectations, I dont think he did a very good job.
Freak posted the transcripts. Read it for yourself.
Jones' early comments on practice have not had the same "flavor". He seems pretty excited and less reserved.