So you are factoring in chances you squandered to say you could have topped us but are not factoring in chances we missed that would have had us even further in front. Out of the games we dropped points in both Palace and Swansea we squandered numerous chances. At Anfield we missed a penalty to cost us two points, heck even in the reverse game at The Bridge Costa missed a late sitter. So by the same logic if we took all our chances we would be sitting on 98 points with one game to go right now, in fact to be ultra pedantic about it Hazard missed two glorious chances at WHL to give us a further point and put us on 99. Also you are not considering the chances the opposition had vs United, from the top of my head that sitter Hull missed in the dying moments at Old Trafford.
You speak the truth for the most part, using a load of if's and but's to support an arguement is generally not going to do you any favours, but there really is a great deal of evidence to support the whole missed chances debate. Namely the following;
Chelsea FC 1st position 200 (51,7 %) 80 20,7 %
Arsenal FC 5th position 179 (51,1 %) 72 20,6 %
Everton FC7th position 181 (56,2 %) 61 18,9 %
Liverpool FC3th position 220 (54,7 %) 75 18,7 %
AFC Bournemouth10th position 156 (51,3 %) 54 17,8 %
Crystal Palace13th position 136 (46,6 %) 50 17,1 %
Manchester City4th position 204 (48,1 %) 72 17,0 %
Leicester City11th position 137 (49,1 %) 46 16,5 %
Tottenham Hotspur2th position 239 (53,2 %) 73 16,3 %
West Bromwich Albion8th position 122 (45,7 %) 41 15,4 %
West Ham United12th position 132 (43,4 %) 45 14,8 %
Swansea City17th position 143 (49,3 %) 43 14,8 %
Burnley FC15th position 124 (47,5 %) 38 14,6 %
Stoke City14th position 134 (47,9 %) 40 14,3 %
Watford FC16th position 142 (49,1 %) 40 13,8 %
Hull City18th position 119 (43,4 %) 36 13,1 %
Manchester United6th position 205 (51,0 %) 52 12,9 %
Sunderland AFC20th position 119 (49,8 %) 28 11,7 %
Middlesbrough FC19th position 98 (41,9 %) 27 11,5 %
Southampton FC9th position 181 (49,2 %) 41 11,1
Chelsea, unsurprisingly, sitting pretty at the top with a reasonable 20% conversation rate, United way down at 4th from bottom with a not so reasonable 12%. The stats above clearly show where it has gone wrong for us this season. The interesting thing is that we United fans didn't really need statistical analysis from some random website to tell us that our chance conversation rate is nothing short of a disgrace, we see it week in week out. It is an ever-present constant that has plagued us all season long (and I mean constant!).
Excuses, excuses, no one likes or cares for them, but you could at least consider the circumstances before you rubbish the idea entirely.
Congrats on winning the league by the way