I think the training bonuses on new version are increasing the odds of seeing several results like the ones you've shown tactician. Around 5/18/16, we were into the Quarter-final rounds of the CL and Cup, so we're facing more active managers. I'm assuming you're at a relatively low level, and if I recall correctly you don't face active managers before the Quarter-finals (except on rare occasion) at low levels.
Basically, what i'm saying is, outside of a tough luck draw and being sharked in league play; you've most likely had a run of good fortune managing against abandoned teams and semi-active teams. But once the late KO rounds arrive, which was roughly 5/18/16, you start facing teams that actually care about winning trophies, so they're going all out against you in the cup and champions league.
P.S. your league opponent with the Goalie in the midfield had several 5* and a scout, so he was online shopping on auction at some point, so that team wasn't abandoned. With decent firepower up top, scoring two goals isn't a huge surprise. Especially if he's training the attacking training bonus and ignoring the others. A 5-2 win is still a nice result. Occasionally the San Marino's of the world score a goal too...