Thoughts on the scenario after completing "Hammers of Fate".

It's not up to us. You're right, but the developers make games for us, not for themselves. Unfortunately, I can't implement the option you suggested right now, despite my strong desire to do so. The "greenhouse conditions" were more noticeable in the latest installment than in the others. It seemed easier to me compared to the previous ones; only the last orc mission stood out.

Well, it might have seemed that way to you because you got the hang of the first two, and it was easier for you to complete the third. The fifth orc mission is certainly not a walk in the park, but it didn't seem too difficult to me. The main thing was to start putting pressure on the orange player right away and not get distracted by the turquoise player. The first mission of Zehir took a lot more effort (and still does).
That is, I want to say that different players get stuck in different places, and the same expansions/missions may seem the most difficult to one player and extremely easy to another. This probably depends on who uses what tactics, who is more used to playing as which race, who is used to what map size, and so on.
As for the fact that developers make games for us primarily, well, you can't please everyone anyway. If they had made 8 full campaigns for each race in the expansion, they would have received criticism from orc fans, who would point out that in total, Heroes 5 has at least 2 campaigns for each race, but only one for the orcs. And if they had made 9 campaigns, with 2 for the orcs, the public would have complained that there were 2 campaigns for one race in one expansion... and so on.
Therefore, they did what they thought was right, and in my opinion, they were right.