it would of been 2.5kg each time i hit full amount of desired reps. still too fast? you are eventually going to hit your maxes for those reps (for example the beginners program mainly using sets of 10 and 8), simply because u cant add weight the next session doesnt mean shit about being a novice or not, all you would need to to is change the rep range and boom, u can add weight
If you start at 25kg for OHP as an example, that means you are adding 10% each session... so yes I'd say that is too much.
If you change the rep range and can still progress next session/weekly then I'd still classify the person as a beginner.
I would argue that not being able to add weight by session/week is the definition of the transition from beginner > intermediate because you need more focused programming as gains don't come as easy.
Using lifts as a measuring stick can be murky at times as people aren't all the same. I am fine with the 140/100/180 norm, though, as it provides realistic targets if food intake etc is good.