My problem with the above mentioned statement about EIS,EN,and EK,is that,it is not the average,most used description of these words. EIS does generally mean motion into. I am not glad about how these statements seem harsh,I just have no other way to say it,than to just state the case. These short statements and then a partial translation is put on the table without any context,defintions,or grammar. I claim this is an example of theological bias,holding back, putting into English what the grammar and definitions call for,and instead, offering unusual phrases,with inaccurate meanings,resulting in trying to make a particular passage fit and confirm one's theology,rather than being challenged and accepting the challenge to offer an accurate translation.
Lets look at the context.
I would say no. He knows their works and has provided openings for more. They are characterized as having a little strength,yet this is a full enough measure to preserve what is important to the Lord. Then reference to some who say they are all this,but aren't. They will someday appreciate the ones who are,just as the Lord does now.