Seasoned warhorse & other math problems

Ok so I don’t know if anyone else has noticed this but after putting a point in seasoned warhorse divine steed still only has a 4 second duration. Since the base is 4 seconds and the talent is supposed to give us 1 more that would be a total of 5, yet every time I use it, 4 seconds duration. I have been noticing this simple math problem since SL, I have Oralius’ Whispering Crystal that gives + 8 str (& other stat buffs) but when I activate it and look at my character screen, it gives 9, which I know, who would complain about an extra point in str, but it just makes me ask “why?” every time I use it.