Attack on Titan: What is もしくは doing in this comparision

Question

I saw this sentence in an episode of Attack on Titan

ライナーができないと言うようにもしくはライナーでさえここで休まざるを得ない現状を鑑みるに

The speaker is referencing something that ライナー said they can't do

I don't understand why you would use もしくは in this comparison I thought もしくは meant A or B representing two different states but in this example the two states to me don't seem that different

My translation would be

ライナーができないと言うように - As\like Reiner said I cant do it

もしくは - Or

ライナーでさえここで休まざるを得ない現状を鑑みるに - I need to keep in mind that in this situation even Reiner was forced to take a break

What am I missing? To me it feels off as the second state seems to "agree" with the first

Answer 1

The context seems significant in this case. I think the lines mean something like:

だが、そもそも俺はまともに巨人化できるのか？
But am I even able to properly transform into a 巨人 to begin with?

ライナーができないと言うように(なるかもしれない)
Things will likely go as Reiner said, which means I will probably fail (if I try)

もしくは
or

ライナーでさえここで休まざるを得ない現状を鑑みるに
Judging from the fact that even Reiner has to take a break here

下手に体力のない巨人を生み出せばほかの巨人にやられちまうってことか？
I will probably end up eaten by other 巨人 if I bungle it and transform into a weak 巨人

鑑みるに is explained in this answer:

Grammar behind 言うには

And ライナーでさえここで休まざるを得ない現状を鑑みるに apparently connects with the following line, which is why context is important here.

Answer 2

I don't know the story too well, but looking at context, the two means different reasons for staying where they are.

What ライナー is saying できない looks like running away (from titans?) not just for Reiner, but for others including Eren. So the part means as Reiner says it is impossible, or considering the current situation that even Reiner has to rest here (we have no choice but to wait for the nightfall).