Holiday rambler roof question

Hello I took my hr next level in to a shop for a routine roof inspection. They told me that I need to replace the front and rear transition trim on the roof because it is not “wide enough “. Mind you I had no issues with the coach, and it has the original tpo roof on it in great shape . They said this is a known issue with hr trailers. I got it back and it looks awful. They used sikaflex not Dicor and the caulking sat nearly 1 in tall. I paid the bill after waiting several days to have them fix it. I scraped the sikaflex off and found that they used residential deck screws to fasten it and both trim pieces have a splice in them now. Hr trailer transition trim makes a soft 90 deg bend on the ends since the roof goes down the sides approximately 4 inches. Before I seal this up should I replace the screws and trim with a solid piece or lay down some self leveling Dicor and call it a day? It appears that butyl tape was used under the trim.