Let's look at the facts.
Robinson took over from McGhee at the end of February 2017 with us sitting 10th in the league, 3 points above Accies in last place. We'd just been scudded 5-1 at home to Dundee, the latest in a run of 4 defeats on the bounce, which also included a 7-2 tanking off Aberdeen.
We'd won two of our last thirteen league games.
We eventually finished 9th, went out to Rangers in the 4th round of the Scottish Cup, and lost 5-0 to Celtic in the last 16 of the League Cup.
In his first full season he brought in notable signings in Craig Tanner, Trevor Carson, Charles Dunne, Cedric Kipre, Liam Grimshaw, Curtis Main and Peter Hartley along with Tom Aldred on loan. We saw Allan Campbell really step up his game, and we saw Robinson hand debuts to Davie Turnbull, Liam Brown, Barry McGuire, and James Scott.
Notable "duds" include Alex Fisher, Russell Griffiths, George Newell, Ellis Plummer, Deimantas Petravicius, and Stephen Hendrie on loan.
We finished 7th in the league, lost 2-0 to Celtic in the Scottish Cup final, and lost by the same score to the same team in the League Cup final.
That summer we sold Kipre for a reported £1 million, a player signed under Robinson on a free the previous summer.
Notable signings include Mark Gillespie, Alex-Rodriguez Gorrin, as well as both Tom Aldred and Gboly Ariyibi on loan. We also saw the emergence of Jake Hastie, and Davie Turnbull really came into his own.
"Duds" that year include Taylor-Sinclair, and Sammon and McCormack on loan.
In his second season we finished 8th in the league, lost to Ross County in the 4th round of the Scottish Cup, and Hearts in the quarter final of the League Cup.
Personally, I think he's accomplished all we really could be expecting of our manager. Pushing for top six, finishing 10th or above (which is what we budget for), his cup record is pretty decent, he's brought in one player who's netted us a million quid so far, and he's brought the youth into the side fairly consistently.
Would it be nice to win a cup or finish in the top six? Aye. Should we judge a manager a failure if he doesn't accomplish either of those? I don't think that's realistic.