Re: Is this true?
Yes, from what you have quoted from Imam Asqalani. There is a lot of ‘‘practice’’ and a lot of ‘‘warning’’ on the subject all from sunnis. I do not know much else about him, since Imam Asqalani is quoting him it must be all good
My interpretation of the quote is he is talking about brothers, as in family, and none of the Ahlus Sunnah go to family just since they are so, rather we go to Awliya since the Help of Allah Ta’ala is with them
Sunni beliefs come from these very scholars