His initial offer which you’re talking about was withdrawn. I don’t know why. I think it was around the time Liverpool and Manchester United we’re having a sniff. I’d guess (just my opinion) Josh was advised to not sign anything yet to see where that interest goes, this annoyed the club (or Ehab) and they withdrew their offer.
The second, lesser offer near the end of the season was rejected by the player/agent. There was interest from Stoke and Villa (Watford were rumoured in the press but that was just a case of Silva heading there and Liverpool rumoured but that was just based on them having a look earlier in the season).
The scholarship extension wasn’t successful and he left to Stoke.
So, if that is the case then, the scholarship extension was just a vehicle to keep him, rather than just a derisory offer.
The second lower offer, if true, now sounds like (in hindsight) a smart move.
All in all, seems like a classic case of a head-being-turned by an agent.