I don't think you want to arbitrarily merge so-called "Smart Matches into your tree. There are a great many errors and conflicts with the data that has caused many people, myself included, major problems. First, most of the data is undocumented which is the biggest issue. Then there is the conflicting data issues and using the "Consensus" tool doesn't help. There is the issue of duplicates, child birth dates earlier than their parents, and too many more to mention here.
I have been with My Heritage for about 2 years and in the beginning thought the data was good as I was only getting a few at the time. However, as my tree grew so did the matches and I now have thousands of people in my tree and thousands more matches to confirm and thousands more to review. Due to the problems in my tree, until I can sort it out, I have stopped all confirmations so not to continue the proliferation of bad data going to people with someone of the same name and nothing else. It would behoove you to be careful in copying data without some type of documentation. I have pictures of headstones, yet the dates on the individual given in the data is wrong.
To this end, I have sent out messages to members of my site regarding this problem and have had many responses of people having the same issue. I have reported this to My Heritage earlier and just sent another message to please contact me since I have found greater problems since my inital report to them.
It is my hope you will not encounter the same problem with doing your due diligence and follow the most important rule in genealogy research: "Document and Cite!"