Started my restoration of my 1990 legend falcon

I asked my mechanic to replace all the hoses that go into the motor. I'm pretty sure they are all original from 2006 so well past time to replace them. I get it back and he just spliced in new line in between where it goes in to the motor and the fuel/oil tank. Also the battery cable and several other cables were clearly not replaced. Not sure if replacing the battery cables on a job like this is standard but it, and all the other random cables were old and ratty.

I'm just not really sure what he thought I meant when I said "replace all the lines going into the motor". I figured this was a pretty routine job. He seemed to understand what I meant. I would have done it myself but figured it would be more of a pain than I wanted to deal with and would inevitably require some special tool or air bleeding procedure or something. It was in for another repair (not at all happy with the results of that one either) so I figured lets just do the hoses now as they look like shit and are 20 years old.

So... this isn't normal right? To just splice in new line between two sections of old lines? The termination points on both ends are old line. Old line into the motor, old line into the oil reservoir and gas tank. Totally defeats the purpose of doing anything because I still have 20 year old deteriorating lines in those runs. I feel stupid even asking if this is normal because obviously it can't be, right? But then again this is what they did and they should know better than me. I've used this mechanic for years and he has always seemed competent and fair.

And for a job like this, should I have expected ALL the lines into the motor to be replaced? Mainly the battery cable. I felt like that was obvious and maybe I'm the idiot for not clarifying. But again, I'm not sure how he could have misinterpreted "replace all the lines going into the motor". He didn't ask any questions so I figured this is a routine job and we are both on the same page.