Ok I finally figured out what's wrong with M/GN 1.It started when StrayLamb suggested some revisions for 1981-1982:
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He proposed splitting M/GN 1 into four sections and moving the last one after DEF 107 because of a footnote in SS3 14. The story explains how Bartak impersonated the Surfer during M/GN 1 and then the footnote says "“the next time the Silver Surfer was seen again on Earth was in Avengers Annual 11, when he was transported to Defenders HQ by a cosmic being, and the heroes assumed he’d been brought from space.” StrayLamb reasoned that since the Surfer appeared in DEF 107, M/GN 1 had to take place after DEF 107.
StrayLamb's summation of the footnote is correct but the problem is that Englehart apparently didn't read Defenders carefully when he wrote that footnote. Kyle Richmond seemingly dies in DEF 106, his funeral is in DEF 107 and the Surfer appears, in DEF 109 Strange, the Hulk and Namor are transported to the Squadron Supreme's world where they meet Kyle (actually the Squadron Supreme's Kyle with the 616-Kyle's memories). Avengers Annual 11 takes place between DEF 111 and DEF 112. in DEF 112, Gargoyle offers a toast to the memory of Kyle and notes that he hasn't seen Strange since issue 109.
The problem is this- Gargoyle, Strange, Hulk, Kyle and Namor all attend Marvel's funeral in the last part of M/GN 1. StrayLamb apparently tried to solve this problem by placing M/GN 1 in between DEF 109 and DEF 111 and assuming that it was Squadron Kyle with 616-Kyle's memories but that makes no sense considering Gargoyle's reaction in DEF 112. It seems that Englehart missed the Surfer's appearance in DEF 107 (his last appearance in Defenders prior to that was in DEF 101). I highly doubt that Englehart intended Strange and co. to be going to a funeral in the middle of stopping world-conquerers.
That footnote can't stand.