I wrote to Bohemia's support email, and they responded by telling me to submit this issue here. I may have ran into some incredibly bad luck with seasonal tasks, but the majority of my friends have also ran into the same issues with them. I will copy and paste the seasonal tasks which I find to be problematic.

Kill 40 outlanders with the AUR HBAR-T in encounters
Kill 40 outlanders with the PSS in encounters
Kill 40 outlanders with the PH M82 in encounters
Kill 70 outlanders with an M249 in encounters
Kill 70 outlanders with a Uk vz. 59 in encounters
Kill 70 outlanders with an MP5-K SD in encounters

Craft 20 L86A1 LSW machine guns
Craft 30 Taiga 21 shotguns
Craft 30 L96 sniper rifles
Craft 50 Berry SMGs
Craft 60 M14 assault rifles
Craft 66 bear traps

If this were on console, these tasks would be grueling but nonetheless doable. However, due to the fact that this is in the first season of PC, I believe that these tasks are extremely unreasonable to expect players to complete. The tasks for killing outlanders are difficult due to the sheer volume of them (total 330 kills), as well as the difficulty of getting some of these guns. Due to the limited crafting parts from this game having only just released, and how difficult getting each plan would be, not to mention upgrading the crafting bench, these tasks are considerably difficult.

The crafting tasks, however, are borderline impossible, particularly due to the quantity of them. Since this is the first season, nobody has a backlog of weapon parts to complete these tasks, and neither do they have any plans for weapons. Even if they were to buy the plans for the weapons, they would have to upgrade their crafting bench (in my case to the maximum level due to the L86A1 LSW machine guns.

Expecting players to reroll their tasks, specially when they come in the volume that they have with me, is unreasonable. It would cost 170 crowns, with additional crowns for tasks which were replaced with similar or the same tasks.