She actually has a good point about letting go of damaged hair. You can't fix it, cut it.
However, what is her background regarding the scientific side of hair? Because I am a self-relaxer and I always take the time to oil my previously relaxed hair prior to relaxing. Why? I read the following from Sistaslick's article about it:
Step 3: Protect It!
The day of relaxer, pay special attention to the length and ends of your hair. The hair shaft and ends are especially vulnerable to damage from the relaxing process unless you protect them. Applying a light coating of something like olive oil, castor oil, a thick conditioner, grease or vaseline to your scalp and hair past the new growth prevents the rest of your hair from being "re-relaxed" as a result of overlapping and runoff during the final rinsing of the relaxer. Protection for the length and ends of the hair is essential because the short, compact nature of the new growth makes it is virtually impossible to avoid overlap. This "chemical run" and lack of protection for the shaft and ends is one of the many reasons quite a few relaxed ladies have thinner, and thinner ends.
Also remember, that oiling the new growth itself may leave you underprocessed because the relaxer has to penetrate through the layers you have put on. If you want a straighter turnout, be sure that you do not coat your new growth-- only coat your scalp and hair shaft past the new growth. As always, apply protective base (vaseline, oil, grease) to your scalp, tops of ears, and other sensitive areas . The base will give you an extra layer of protection between the relaxer crème and those areas.
We all know Sistaslick's extensive background, so...um, yeah..Imma keep oiling thank you.