I've been lucky enough that I haven't miss out on anything yet, so in my case it's not that much of a personal concern.
But having said that, I understand where you are coming from.
I think the problem is just that at this point, between the oversized beasts and 'bonus' figures, there's going to be some extra item coming out almost every month.
Let's face facts here. The regular sized figures are $20, and the Shadow Beast is $30. If they waited until next month (when, if I am not mistaken, BA Skeletor will be released) you are still going to have an extra figure coming out. So, it would only be a difference of $10 per sub. I know that is a lot for some people, but it's really not a tremendous difference in price. It's not like Tytus would be that much easier to afford come next month in terms of what else is coming out for most people who have an issue with the cost this month.
The problem is that there is no perfect way to handle reissues. There's always going to be new merchandise coming out. And as it is, they are starting to release more than 1 reissue item at the same time since there are so many figures to reissue now.
The idea behind them is to give people a chance to catch up if they previously missed out. With so many new items coming out AND with there being so many old items that at least some amount of people missed out on, there's just not going to be a 'perfect' way to handle it.
Truthfully I would be tempted to take you up on the offer of trading a Tytus for a Shadow Beast if you were in the USA. I have an extra first issue Tytus MIB (I was previously keeping an extra of everything MOC/MIB, but have been gradually moving away from that trend), and I have one Shadow Beast coming from my sub, but I wouldn't mind having 2 to open and display, but I have no intention of paying over $40 to buy an extra one (which is what the cost will be once tax and the separate shipping are factored in). But, I don't really want to deal with the hassle and cost of international shipping, either.