I'm open to changing the icons but personally I don't find either of those any better/worse than the current icons.
They are both in the FA version we have (fa-minus-circle, fa-arrow-square-right) but they make things even more inconsistent with other areas.
In the firewall rule list we use a checkmark (fa-check) on pass rules and an X (fa-times) on block rules. Using the circle outline versions of those looks better to me and is consistent.

Changing the icons is easy enough, just need to update the class attribute on the lines that output the easyrule links:
diff --git a/src/usr/local/www/status_logs_filter.php b/src/usr/local/www/status_logs_filter.php
index 599105f5f2..228ed9aaae 100644
--- a/src/usr/local/www/status_logs_filter.php
+++ b/src/usr/local/www/status_logs_filter.php
@@ -237,7 +237,7 @@ if (!$rawfilter) {
<i class="fa fa-info icon-pointer icon-primary" onclick="javascript:resolve_with_ajax('<?="{$rawsrcip}"; ?>');" title="<?=gettext("Click to resolve")?>">
</i>
- <a class="fa fa-minus-square-o icon-pointer icon-primary" href="easyrule.php?<?="action=block&int={$int}&src={$filterent['srcip']}&ipproto={$ipproto}"; ?>" title="<?=gettext("EasyRule: Add to Block List")?>">
+ <a class="fa fa-times-circle-o icon-pointer icon-primary" href="easyrule.php?<?="action=block&int={$int}&src={$filterent['srcip']}&ipproto={$ipproto}"; ?>" title="<?=gettext("EasyRule: Add to Block List")?>">
</a>
<?=$srcstr . '<span class="RESOLVE-' . $src_htmlclass . '"></span>'?>
@@ -246,7 +246,7 @@ if (!$rawfilter) {
<i class="fa fa-info icon-pointer icon-primary; ICON-<?= $dst_htmlclass; ?>" onclick="javascript:resolve_with_ajax('<?="{$rawdstip}"; ?>');" title="<?=gettext("Click to resolve")?>">
</i>
- <a class="fa fa-plus-square-o icon-pointer icon-primary" href="easyrule.php?<?="action=pass&int={$int}&proto={$proto}&src={$filterent['srcip']}&dst={$filterent['dstip']}&dstport={$filterent['dstport']}&ipproto={$ipproto}"; ?>" title="<?=gettext("EasyRule: Pass this traffic")?>">
+ <a class="fa fa-check-circle-o icon-pointer icon-primary" href="easyrule.php?<?="action=pass&int={$int}&proto={$proto}&src={$filterent['srcip']}&dst={$filterent['dstip']}&dstport={$filterent['dstport']}&ipproto={$ipproto}"; ?>" title="<?=gettext("EasyRule: Pass this traffic")?>">
</a>
<?=$dststr . '<span class="RESOLVE-' . $dst_htmlclass . '"></span>'?>
</td>